IV Second stage\\
$\ln(Chinese\,Aid\,\textsubscript{t-2})$&   -0.757         &    0.385         &   -1.717         & -159.620         \\
          &  (2.110)         &  (1.013)         &  (3.239)         &(2517.602)         \\
KP p-value&    0.000         &    0.000         &    0.000         &    0.946         \\
KP F-stat &   31.190         &   74.289         &   16.456         &    0.004         \\
